Riley Overview
Riley Technologies LLC is an American auto racing constructor and team founded in 2001 by Bob Riley and Bill Riley. Based in Mooresville, North Carolina, the team specializes in designing and manufacturing race cars and prototype development. Riley currently competes in the IMSA SportsCar Championship, fielding the No. 63 Lamborghini SC63 in the GTP category and the No. 74 Oreca 07 in the LMP2 category. The team is recognized for its success with Daytona Prototype chassis, multiple 24 Hours of Daytona victories, and collaborations with high-profile manufacturers such as Lamborghini, Mercedes-AMG, Mazda, and SRT.
Founding and Organizational Origins
Riley Technologies was established in 2001 by Bob Riley and his son Bill Riley, both experienced figures in motorsports engineering and racing. The formation of the team followed their work with Riley & Scott, aiming to create a company focused on race car design, manufacturing, and prototype development. Initially, the team concentrated on building competitive chassis and race cars tailored to various racing series. In late 2006, Riley Technologies relocated its headquarters to Mooresville, North Carolina, a hub for motorsports teams and suppliers, to better support its expanding operations and technical development.
Growth Into IMSA SportsCar Championship Competition
Riley Technologies expanded its presence in the IMSA SportsCar Championship through the development of competitive race cars and strategic partnerships. The team built a reputation for its Daytona Prototype chassis, which dominated the Grand-Am Rolex Sports Car Series grid and results. Riley supplied chassis to prominent teams such as Chip Ganassi Racing, Brumos Racing, and Action Express Racing, contributing to multiple 24 Hours of Daytona wins. The company also developed GT race cars, including the Mazda RX-8 chassis and the BMW M6 GT, competing successfully in the American Le Mans Series and IMSA GT classes. Riley’s collaboration with Multimatic led to the creation of the Riley-Multimatic MkXXX LMP2 chassis, further solidifying its role in prototype racing.
Riley Competitive Journey
Since its inception, Riley Technologies has progressed from a constructor of Daytona Prototype chassis to a versatile competitor and manufacturer in various sports car racing categories. The team has evolved by embracing new technologies, expanding into GT and prototype classes, and forming partnerships with leading automotive manufacturers.
Early Seasons and Development (2001–2010)
In its early years, Riley Technologies focused on designing and building Daytona Prototype chassis for the Grand-Am Rolex Sports Car Series. The chassis quickly became dominant, with Riley cars winning seven editions of the 24 Hours of Daytona between 2005 and 2011. The team also developed the Mazda RX-8 chassis for SpeedSource, which won the GT class in the 2008 24 Hours of Daytona. During this period, Riley expanded its technical expertise and established a strong presence in North American sports car racing.
Breakthrough in IMSA and ALMS (2011–2017)
Riley Technologies continued to innovate by developing race cars for GT classes, including the Chevrolet Corvette GT2 and the SRT Viper GT, which debuted in the American Le Mans Series and later competed in IMSA GTLM and GTD classes. The SRT Viper program achieved notable success, including a teams championship and a drivers championship by Kuno Wittmer in 2014. Riley also supported Mercedes-AMG GT GT3 customer teams, achieving strong results such as runner-up finishes and Endurance Cup victories. The partnership with Multimatic resulted in the Riley-Multimatic MkXXX LMP2 chassis, marking Riley’s entry into the LMP2 and DPi prototype categories.
Modern Program and Current Direction (2018–Present)
Riley Technologies currently fields two cars in the IMSA SportsCar Championship: the No. 63 Lamborghini SC63 in the GTP class and the No. 74 Oreca 07 in LMP2. The team took over Lamborghini’s GTP program in 2025, running the car under the Automobili Lamborghini Squadra Corse banner with factory drivers including Mirko Bortolotti and Romain Grosjean. Riley continues to maintain strong technical partnerships and operates from its Mooresville facility, focusing on competitive performance and innovation in prototype racing. The team’s general manager is Bill Riley.
Philosophy and Competitive Strengths
Riley Technologies emphasizes engineering excellence, adaptability, and collaboration with manufacturers to produce race cars that excel in endurance and prototype racing. The team’s strength lies in its ability to develop chassis and mechanical components that deliver competitive performance across diverse racing categories, including Daytona Prototypes, GT cars, and LMP2 prototypes.
Key Milestones and Major Moments
Riley’s first major milestone was its dominance in the Daytona Prototype class with multiple 24 Hours of Daytona victories between 2005 and 2011. The development of the SRT Viper GT and subsequent championships in GT classes marked a significant expansion. The partnership with Multimatic and entry into LMP2 and GTP categories represent recent milestones, with the 2025 Lamborghini SC63 program highlighting Riley’s ongoing prominence in top-level sports car racing.
Riley Achievements and Results
Riley Technologies has achieved numerous victories and championships, particularly in the Daytona Prototype class and GT categories. The team’s race cars have won prestigious endurance events and contributed to championship titles in IMSA and American Le Mans Series competitions.
IMSA SportsCar Championship Achievements
Riley chassis have been central to multiple 24 Hours of Daytona wins, including victories with SunTrust Racing, Chip Ganassi Racing, Brumos Racing, and Action Express Racing. The team won the IMSA GTLM teams championship and drivers championship in 2014 with the SRT Viper GT. In recent years, Riley’s involvement with Lamborghini’s GTP program and customer Mercedes-AMG GT GT3 teams has yielded strong championship results and endurance race successes.
Conference Achievements
While specific conference titles are not documented, Riley’s consistent presence and competitive results in IMSA’s GT and prototype classes demonstrate the team’s ability to develop winning cars and support championship-caliber drivers.
Divisional Achievements
Riley’s development of GT and prototype cars has led to divisional successes, including class wins at endurance events such as the 24 Hours of Daytona and Petit Le Mans. The team’s cars have frequently finished on podiums and secured top positions in GTD, GTLM, and LMP2 divisions.
Series Achievements
Riley Technologies has been a dominant force in the Grand-Am Rolex Sports Car Series and the IMSA SportsCar Championship. The team’s Daytona Prototype chassis were the most prevalent and successful in the Grand-Am series. Riley’s contributions to the American Le Mans Series and IMSA GT classes have also been significant, with race wins and championships highlighting the team’s competitive legacy.